Manufacture of bricks, tiles, slabs, &amp;c.



i 0 COMPOSITIONS,

COATING OR PLASTIC.

UNITED STATES PATENT OFFIC v JOHN SAUNDERS, OF HOVE, ENGLAND MANUFACTURE OF BRICKS, TILES, sLABs, 8w.

SPECIFICATION forming part of Letters Application filed September 2, 1899.

To alt whom it may concern:

Be it known that I, JOHN SAUNDERS, a citizen of England, residing at No. 24 Arthur street, Hove, in the county of Sussex, England, have invented certain new and useful Improvements in the Manufacture of Bricks, Tiles, Slabs, and the Like, (for which I have applied for a patent in Great Britain, dated February 13, 1899, No. 3,205,) of which the following is a specification.

My invention relates to the manufacture of bricks, tiles, slabs, and the like of material that relquires no burning. For this purpose I rin to" r sand ravel clinkers and tm'fiil l fir a o a various propor 1008. a good proportion is about sixteen parts, by weight, of the sand or like material to one part, by weight, of cement and about one-tenth per cent. of alum. The ground material is mixed with water enough to make it into a p u n u ing-say two to three per cent. This paste is molded to the desired forms, and these are kept in dry sheds for about a fortnight, after Patent No. e72,24o, dated A rn 16, 1901.

Serial No. 729,297- (No specimens.)

which they can be exposed to the weather and 25 are fit for building purposes.

When red bricks are required, I add to the mixture above described about equal quantiof the cement employed.

For yellow bricks the mixture has added to my hand in presence of two subscribing witnesses.

JOHN SAUNDERS.

Witnesses H. D. J AMESON,

F. L. RAND.

ties of Venetian r d and red oxid of irfin, ma"- ing u flog 1e Her aout the same weig as that 30 invention and the best means I know of car- 35 

